1/4" Shank, 1/2 X 2 Inch Length, Fine Grit, Yellow - End Mill & Carbide Burr by Saburr Tooth - Rotary, Shank, Wood, Power carving - SS122 w/ Shaft Saburr-Tooth - 100% Made in USA. The Best Power Carving Tool! Not for use on METAL or CERAMICS. Best used in Industries: Power Carving, Wood Working, Furniture, Ice-carving, Sculpting Dental Labs, Orthotic Labs, Taxidermy, Pattern Shops, DIY., Hobbyist LOG Home Building, Construction, CNCMachining, Milling Ideal for use on difficult to cut materials: Wood, Rubber, Silicone Plastic, Foam, Bone, Ice, Fiberglass, Polyurethane, Epoxies, Acrylics, Composites, Graphite, Soap Stone, Alabaster Recommended Operation Speed: 4,000 to 25,000 RPM